I haven't doubled the temp. I have doubled the enthalpy change. This is because in the second equation I am creating 2 lot's of water. So the energy required to create twice the amount will be twice the energy so deltaH is multiplied by 2.
In the first equation whichis how the mark scheme does it, is that you are creating 1 mol of water so deltaH is -242. The reason it's half of water because the first equation is 1/2O2 which means that the entropy must be half aswell.
Safe.
Do you mind explain the strength of the Cl-Cl bond compared to a br-br bond?
Do you mind explain the strength of the Cl-Cl bond compared to a br-br bond?
Sure no problem. The Cl atom is smaller compared to bromine and has less electron sheilding due to less shells around the atom. So the attraction between the nuclues of the chlorine atom and the bond pair of electrons is much stronger because the distance between them is smaller. (Think of it like two magnets attracting. The closer they are the stronger they attract and so the harder it is you pull them away from each other).
Thus the energy required to overcome this force is much greater. So Cl-Cl bond has requires more energy to break than Br-Br bond.
If Delta G is less than or equal to 0 do you say that the reaction is feasible or that it is spontaneous? Or does it not matter? I've seen both appear in markschemes so idk :/
If Delta G is less than or equal to 0 do you say that the reaction is feasible or that it is spontaneous? Or does it not matter? I've seen both appear in markschemes so idk :/
If Delta G is less than or equal to 0 do you say that the reaction is feasible or that it is spontaneous? Or does it not matter? I've seen both appear in markschemes so idk :/
Feasibility is talking about the likely hood it is going to be spontaneous a requirement is it has to be below 0 for spontaneous reactions however if they ask why it is below 0 and not spontaneous it wants you to talk about high activation energy etc
Feasibility is talking about the likely hood it is going to be spontaneous a requirement is it has to be below 0 for spontaneous reactions however if they ask why it is below 0 and not spontaneous it wants you to talk about high activation energy etc